Quetch



G. w. LANE Jan. 9, 1934.

uE'rdH anoentoz,

Filed June 20 193D G r Minna.

Patented Jan. 9, 1934 UNITED STATES PATENT OFFICE QUETCH Application June 20, 1930. Serial No. 462,475

8 Claims.

This invention relates to that class of machines, known as quetches in which a sheet of porous material, as a fabric, is treated with a sizing substance. My object is to provide a quetch which may be readily controlled so as to apply the sizing substance, or size, whether in thin-, semior thick-liquid (or near-paste) form, in the desired quantity and in any desired degree of penetration from slight dampness to full penetration. In quetches as heretofore constructed there are usually three superposed rolls, two rotating in reverse directions and adapted to advance the fabric and at the same time compress it, the pressure being adjustable, so as to obtain more or less penetration, and the third bearing upwardly against the lower compression roll and either geared with it or driven by it by contact therewith, so that it rotates with (but reversely to) it, this third roll serving to take up size on its periphery from a size receptacle into which it dips and to the second roll. In such cases, since all three rolls rotate at the same peripheral speed the operator can not control the degree of penetration. According to this invention the mentioned third or size-delivery roll is driven independently of the other two and at variable speed; it is furthermore driven in such direction that it and the intermediate roll have their proximating portions moving in reverse directions, wherefore the size accumulates in the nip of these, two rolls and forms in effect a supply from which the second roll takes its size and which, moreover, enables the operator to determine visually more or less the amount of and other conditions affecting the size. Further, the two latter rolls are in size delivery relation to each other but spaced.

In the drawing:

Fig. 1 is a side elevation of a machine embodying the invention;

Fig. 2 shows certain parts in substantially central vertical longitudinal section and others in side elevation; and

Fig. 3 is a similar sectional detail view of the means for controlling the position of the top roll.

1 is the frame having brackets 2 to support the beam 3 of the roll of fabric to be treated and brackets 4 to support the beam 5 for the treated goods, which latter beam may be driven by any means (not shown) so as to wind up the fabric as fast as it is delivered by the machine.

At 6 is an open-top receptacle for the sizing liquid; preferably this is supported in the frame so as to be movable vertically into and out oi. the position where the size-delivery roll dips into the size therein, as by its vertical stems 'I, guided by brackets 8, being pivotally connected with a crank 9 through a link 10, it being understood that said crank has a handle 90, for turning it one way or the other.

At 11 is the lower or size-delivery roll, journaled in the frame. a

At 12 is the center or lower size-applying and compressing roll. This is journaled in two arms 13 pivoted in the frame and having nuts 14 journaled on a horizontal axis in their free ends and with which are engaged the screws 15 seated 'on and journaled in the frame and adapted, when turned by a spanner or other wrench, to adjust said roll vertically to vary the space between it and roll 11, it being understood that whereas said rolls are maintained in size-delivery rela-' tion to each other they are spaced so as not only not to frictionally resist each other but permit delivery of the size to the compression roll 12 in a film of variable thickness, according to its density or consistency and other conditions.

At 16 is the top or upper compressing roll. This is journaled in two arms 1'7 pivoted in the frame and is subject to means whereby said roll is made to exert some desired pressure in coaction with roll 12 and which means permits movement of roll 16 from roll 11 to allow entry or lacing of the fabric between them at the start of a sizing operation. In the example said means comprises a pair of weighted levers 18 fulcrumed in the frame and adapted when depressed to rest thereon at 19 and a pair of toggle-link connections between the arms 17 and these levers comprising a shaft 20 journaled in links 21 pivoted to the frame and having; n operating handle 22 and also two cranks 23, a '{upper pair of links 24 pivoted to the arms 17 at 17a, and a lower pair of links 25 pivoted to levers 18 at 18a, each link 24 and corresponding link 25 being pivoted to a stud 23b 01 the corresponding crank 23. This construction is such that when the shaft 20 is turned by depressing its handle the roll 16 first comes to rest upon roll 12 and then the levers 18 are elevated, the movement terminating in the links 24 abutting the shaft (or a projection 24b thereon) when the pivots at 2317 have passed the dead center with respect t 20-17a or 20-18(1, leaving the parts toggle-locked in this condition; and that when the shaft is turned by the handle in the reverse direction the first efiect will be to allow the levers 18 to come to rest at 19, thus removing their weight from roll 16, and then elevate this roll clear of roll 12. Each link 24 comprises two right-and-left-hand threaded members 24a connected by a nut 26 so as to make possible adjustment of the spacing of roll 16 from roll 12 when these rolls are separated. The weight of levers 18 depends of course on the number of weights 18b applied thereto.

A motor is indicated at 27. The motor drives a counter-shaft 28 through a pulley 29 on the motor shaft, a pulley 30 on the counter-shaft and a belt 31 connecting the pulleys, and the roll 12 is driven through a pulley 32 on the countershaft, a pulley 33 on the roll shaft and a belt 34 connecting these pulleys. Roll 12 is therefore driven at constant speed. Roll 11 is, however, driven at variable speed through some variablespeed transmission, as the following: On the counter-shaft and a shaft 35 are reverse cone pulleys 36 and 37 connected by a belt 38 (which may be shifted on them by any means-not shown), and on shaft 35 and the shaft of roll 16 are pulleys 39 and 40 connected by a belt 41.

When the machine is operated the drive of the fabric is effected by the rolls 12 and 16, the pressure means for roll 16 being of course then subject to the action of the weighted lever 18 by depressing handle 22 to the position of Fig. 2, where the toggle-lock is established, and the adjustment at 26 efiected to suit the particular thickness of the fabric or other sheet being treated. The roll 11 rotates, out of contact with roll 12, to carry the size up thereto on its periphery.. Since its speed is variable it may be made to carry more or less size to roll 16, as may be required, according to its speed. The directions of rotation of the rolls is indicated by arrows in Fig. 2 from which it will be seen that whereas both rolls 12-16 rotate in reverse directions, or the direction to advance the fabric, roll 11 rotates in the same direction as roll 12, or so that the proximating portions of their peripheries move reversely to each other, wherefore the size accumulates or banks up at the nip of these two rolls, more or less, depending on the speed of roll 11, and more or less size is accordingly delivered to the fabric.

When in the claims I use the expression size- Mimi delivery I or? course mean that the roll 11, al-

' though spaced from roll 12, delivers directly to it, or not through any intermediary roll.

Having thus fully described my invention what I claim is:

1. In a quetch, the combination of supporting means, means therein to advance and at the same time compress the material being treated including a rotated compression roll, a liquid-delivery roll journaled in the supporting means with its periphery in liquid-delivery relation to the periphery of the first roll, and means to drive the second means and simultaneously drive the liquid-delivery roll at a speed variable independently of the speed of the second means.

2. In a quetch, the combination of supporting means, means therein to advance and at the same time compress the material being treated including a rotated compression roll, a liquid-delivery roll journaled in the supporting means with its periphery in liquid-delivery but spaced relation to the periphery of the first roll, and means to drive the second means and simultaneously drive the liquid-delivery roll at a speed variable independently of the speed of the second means.

3. In a quetch, the combination of supporting means, means therein to advance and at the same time compress the material being treated including a rotated compression roll, a liquiddelivery roll journaled in the supporting means with its periphery in liquid-delivery relation to the periphery of the first roll, and means to drive the second means and simultaneously rotate the liquid-delivery roll at a speed variable independently of the speed of the second means and in the same rotary direction as the first roll.

4. In a quetch, the combination of supporting means, means therein to advance and at the same time compress the material being treated including a rotated compression roll, a liquiddelivery roll joumaled in the supporting means with its periphery in liquid-delivery but spaced relation to the periphery of the first roll, and means to drive the second means and simultaneously rotate the liquid-delivery roll at aspeed variable independently of the speed of the second means and in the same rotary direction as the first roll.

5. In a quetch, the combination of supporting means, means therein to compress the material being treated including a compression roll revoluble with the advancing material, a liquid-delivery roll iournaled in the supporting means with its periphery in liquid delivery but spaced relation to the periphery of the first roll, and means to drive the liquid-delivery roll at a speed variable independently of the speed of the first roll.

6.. A quetch comprising, in combination, supporting means, means therein to compress the material being treated including a compression roll revoluble with the advancing material, a liquid-delivery roll journaled in the supporting means with its periphery in liquid-delivery relation to the periphery of the first roll, and means to drive the liquid-delivery roll at a speed variable independently of the speed of the first roll.

'7. A quetch comprising, in combination, supporting means, means therein to compress the material being treated including a compression roll revoluble with the advancing material, a

liquid-delivery roll journaled in the supporting means with its periphery in liquid-delivery relation to the periphery of the first roll and means to drive the liquid-delivery roll at a speed variable independently of the speed of and in the same rotary direction as the first roll.

8. A quetch comprising, in combination, supporting means, means therein to compress the material being treated including a compression roll revoluble with the advancing material, a size-delivery roll iournaled in the supporting means with its periphery in size-delivery but spaced relation to the periphery of the first roll, and means to drive the size-delivery roll at a speed variable independently of the speed of and in the same rotary direction as the first roll.

GEORGE W. LANE. 

